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Blalock Canyon
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GPS Coordinates
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About This Ramp
Type
Trailered Boat Launch
Managed by
U.S. Army Corps of Engineers
Parking
Yes
Contact
Oregon Marine Board1 data sourceUpdated Mar 2026
Blalock Canyon is a public boat ramp on Columbia River (Lake Umatilla) in Gilliam County, Oregon (97812). Managed by U.S. Army Corps of Engineers. GPS coordinates: 45.6961°N, 120.3722°W.